Recommended AR-15 resources:
New! The Gun Digest Book of the AR-15 Vol. III
New! The Gun Digest Buyer's Guide to Tactical Rifles
The Gun Digest Book of the AR-15 Vol. I
The Gun Digest Book of the AR-15 Vol. II
Gunsmithing the AR-15, How to Maintain, Repair & Accessorize
Find more gun books, DVDs and downloads at gundigeststore.com.